Finding the Fourth Proportional to 886,931.70, 1,330,397.55 and 389,267.70
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Solution
The fourth proportional to 886,931.70, 1,330,397.55 and 389,267.70 is: 583,901.55
Step by Step Solution
- Step 1: Write the proportion equation
886,931.70 : 1,330,397.55 = 389,267.70 : x - Step 2: Convert to fraction form
886,931.70/1,330,397.55 = 389,267.70/x - Step 3: Cross multiply
886,931.70x = 1,330,397.55 × 389,267.70 - Step 4: Simplify right side
886,931.70x = 517,880,794,374.14 - Step 5: Solve for x
x = 517,880,794,374.14/886,931.70 - Step 6: Final answer
x = 583,901.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.